Company · HYLN · CIK 1759631

Hyliion Holdings Corp. (HYLN) SEC filings and CIK.

HYLN’s SEC Central Index Key (CIK) is 0001759631, or 1759631 without leading zeros. The SEC’s ticker file lists it as Hyliion Holdings Corp..

Ticker: HYLN
CIK: 0001759631
Other tickers: None
Insider transactions, Q3 2026: 8

Insider trading

In Q3 2026, insiders at Hyliion Holdings Corp. reported 8 non-derivative transactions on 8 Forms 3, 4 and 5, including 1 open-market purchases and 0 sales. See every HYLN insider transaction →

Recent filings we observed

No filings for this CIK appear in our current observation window. The full history is available from the filings endpoint below and on SEC.gov.

Get HYLN SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1759631&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1759631" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1759631?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Hyliion Holdings Corp. on SEC.gov

Questions

What is HYLN’s CIK number?

HYLN’s SEC Central Index Key (CIK) is 0001759631, or 1759631 without leading zeros. The SEC’s ticker file lists it as Hyliion Holdings Corp..

How do I find Hyliion Holdings Corp.’s 10-K?

Request /api/v1/filings?cik=1759631&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/hyln.md

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